diff --git a/inlong-sdk/dirty-data-sdk/src/main/java/org/apache/inlong/sdk/dirtydata/InlongSdkDirtySender.java b/inlong-sdk/dirty-data-sdk/src/main/java/org/apache/inlong/sdk/dirtydata/InlongSdkDirtySender.java
index ee96b3b52e..14fd9e697e 100644
--- a/inlong-sdk/dirty-data-sdk/src/main/java/org/apache/inlong/sdk/dirtydata/InlongSdkDirtySender.java
+++ b/inlong-sdk/dirty-data-sdk/src/main/java/org/apache/inlong/sdk/dirtydata/InlongSdkDirtySender.java
@@ -31,7 +31,6 @@
 import java.util.concurrent.Executor;
 import java.util.concurrent.Executors;
 import java.util.concurrent.LinkedBlockingQueue;
-import java.util.concurrent.TimeUnit;
 
 @Slf4j
 @Builder